Julia M. Rohrer
@dingdingpeng.the100.ci
Personality psych & causal inference @UniLeipzig. I like all things science, beer, & puns. Even better when combined! Part of http://the100.ci, http://openscience-leipzig.org
about effects one would expect for multilingualism. It's just that it's something else than a randomized controlled trial explicitly manipulating (as opposed to, e.g. encouraging) multilingualism which seems...rather elusive.
November 11, 2025 at 2:06 PM
about effects one would expect for multilingualism. It's just that it's something else than a randomized controlled trial explicitly manipulating (as opposed to, e.g. encouraging) multilingualism which seems...rather elusive.
I think that's a cool study! But I think an 11-week language course is a slightly different exposure than multilingualism (regular use of more than one language). I think one could make the point that these should target similar mechanisms and so the study is informative
November 11, 2025 at 2:06 PM
I think that's a cool study! But I think an 11-week language course is a slightly different exposure than multilingualism (regular use of more than one language). I think one could make the point that these should target similar mechanisms and so the study is informative
Reposted by Julia M. Rohrer
I think the general lessons are:
1. Be clear about your goal (_estimand_)
2. Be clear about your analytical method (_estimator_)
3. Be clear about the assumptions that connect method to goal (_design_)
1. Be clear about your goal (_estimand_)
2. Be clear about your analytical method (_estimator_)
3. Be clear about the assumptions that connect method to goal (_design_)
November 11, 2025 at 11:24 AM
I think the general lessons are:
1. Be clear about your goal (_estimand_)
2. Be clear about your analytical method (_estimator_)
3. Be clear about the assumptions that connect method to goal (_design_)
1. Be clear about your goal (_estimand_)
2. Be clear about your analytical method (_estimator_)
3. Be clear about the assumptions that connect method to goal (_design_)
Independent replication
November 11, 2025 at 12:32 PM
Independent replication
Reposted by Julia M. Rohrer
I think likening that to a superposition of quantum states doesn't work. In the quantum case, make a measurement and you will end up either with one or the other. What you are describing is worse: it starts out and will remain inconsistent. Let's call it the Whitman approach to causal inference!
November 11, 2025 at 11:52 AM
I think likening that to a superposition of quantum states doesn't work. In the quantum case, make a measurement and you will end up either with one or the other. What you are describing is worse: it starts out and will remain inconsistent. Let's call it the Whitman approach to causal inference!
With that mindset, every cause is a manipulable cause 💪🏼
November 11, 2025 at 12:29 PM
With that mindset, every cause is a manipulable cause 💪🏼
spoken like a true internet-multilingual
November 11, 2025 at 9:59 AM
spoken like a true internet-multilingual
😭😭😭 you can't make a joke like that while I'm handling manuscripts that essentially implement some variation of this
November 11, 2025 at 9:58 AM
😭😭😭 you can't make a joke like that while I'm handling manuscripts that essentially implement some variation of this
For sale: randomized controlled trial, never conducted
November 11, 2025 at 9:47 AM
For sale: randomized controlled trial, never conducted
we just need parents with bolder scientific mindsets
November 11, 2025 at 9:47 AM
we just need parents with bolder scientific mindsets
This slide unfortunately generalizes well 🥲
November 11, 2025 at 9:25 AM
This slide unfortunately generalizes well 🥲
0.1% of authors get punished by actually having to conduct they studies they claim will fix the issues of their study 😭
November 11, 2025 at 9:09 AM
0.1% of authors get punished by actually having to conduct they studies they claim will fix the issues of their study 😭
But they do discuss it as a limitation to *check notes* their ability to link variability in specific factors such as age of acquisition and proficiency level to aging outcomes 😭
November 11, 2025 at 9:08 AM
But they do discuss it as a limitation to *check notes* their ability to link variability in specific factors such as age of acquisition and proficiency level to aging outcomes 😭
"I have a randomized controlled trial but he goes to a different school"
November 11, 2025 at 8:37 AM
"I have a randomized controlled trial but he goes to a different school"
Whenever I get to review a paper that vaguely points towards the possibility of randomized experiments, I do ask them to spell out what they actually mean. If you genuinely believe that this is a solution, surely your readers deserve more than just boilerplate.
November 11, 2025 at 8:32 AM
Whenever I get to review a paper that vaguely points towards the possibility of randomized experiments, I do ask them to spell out what they actually mean. If you genuinely believe that this is a solution, surely your readers deserve more than just boilerplate.
Fun fact in some parts of Leipzig (such as our previous apartment) it is quite easy to get fiber optic internet access because infrastructure created in the GDR was re-animated.
November 10, 2025 at 10:02 AM
Fun fact in some parts of Leipzig (such as our previous apartment) it is quite easy to get fiber optic internet access because infrastructure created in the GDR was re-animated.
The internet thing came so quickly, we barely had enough time to prepare.
November 10, 2025 at 8:56 AM
The internet thing came so quickly, we barely had enough time to prepare.
Yeah PDF is fine. Also, somewhat delightfully, our University blocks all e-mails with rtf attachements, so we cannot even collaborate with the template provided by the DFG 👌🏼
November 10, 2025 at 8:44 AM
Yeah PDF is fine. Also, somewhat delightfully, our University blocks all e-mails with rtf attachements, so we cannot even collaborate with the template provided by the DFG 👌🏼
ngl, must have been like close to 30 years ago. But the name has been etched into my memory.
November 10, 2025 at 8:28 AM
ngl, must have been like close to 30 years ago. But the name has been etched into my memory.
(bread looks excellent tho 👌🏼)
November 10, 2025 at 8:06 AM
(bread looks excellent tho 👌🏼)
A friend just forwarded me this with the words "Andrew Heiss needs to be stopped" and I couldn't agree more.
November 10, 2025 at 8:05 AM
A friend just forwarded me this with the words "Andrew Heiss needs to be stopped" and I couldn't agree more.
Wilhelma!! Now that's a name I haven't heard in a long time. Leipzig only has Guanakos :(
November 10, 2025 at 8:03 AM
Wilhelma!! Now that's a name I haven't heard in a long time. Leipzig only has Guanakos :(
Even more fun is the factor analysis version. Does the factor load onto the items or do the items load onto the factor?
November 10, 2025 at 8:02 AM
Even more fun is the factor analysis version. Does the factor load onto the items or do the items load onto the factor?